diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2023-08-15 00:47:17 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-08-16 00:54:44 +0300 |
| commit | 9272af109fe65d1a13f28c5c13777b62d3e97e8c (patch) | |
| tree | edb1bbfc92c4f5314ca2fff9faa4e7a24ee3390d | |
| parent | bffcc6882a1bb2be8c9420184966f4c2c822078e (diff) | |
| download | linux-9272af109fe65d1a13f28c5c13777b62d3e97e8c.tar.xz | |
genetlink: add struct genl_info to struct genl_dumpit_info
Netlink GET implementations must currently juggle struct genl_info
and struct netlink_callback, depending on whether they were called
from doit or dumpit.
Add genl_info to the dump state and populate the fields.
This way implementations can simply pass struct genl_info around.
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20230814214723.2924989-5-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | include/net/genetlink.h | 8 | ||||
| -rw-r--r-- | net/netlink/genetlink.c | 16 |
2 files changed, 22 insertions, 2 deletions
diff --git a/include/net/genetlink.h b/include/net/genetlink.h index 9dc21ec15734..86c8eaaa3a43 100644 --- a/include/net/genetlink.h +++ b/include/net/genetlink.h @@ -250,11 +250,13 @@ struct genl_split_ops { * @family: generic netlink family - for internal genl code usage * @op: generic netlink ops - for internal genl code usage * @attrs: netlink attributes + * @info: struct genl_info describing the request */ struct genl_dumpit_info { const struct genl_family *family; struct genl_split_ops op; struct nlattr **attrs; + struct genl_info info; }; static inline const struct genl_dumpit_info * @@ -263,6 +265,12 @@ genl_dumpit_info(struct netlink_callback *cb) return cb->data; } +static inline const struct genl_info * +genl_info_dump(struct netlink_callback *cb) +{ + return &genl_dumpit_info(cb)->info; +} + int genl_register_family(struct genl_family *family); int genl_unregister_family(const struct genl_family *family); void genl_notify(const struct genl_family *family, struct sk_buff *skb, diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c index f98f730bb245..82ad26970b9b 100644 --- a/net/netlink/genetlink.c +++ b/net/netlink/genetlink.c @@ -847,6 +847,14 @@ static int genl_start(struct netlink_callback *cb) info->family = ctx->family; info->op = *ops; info->attrs = attrs; + info->info.snd_seq = cb->nlh->nlmsg_seq; + info->info.snd_portid = NETLINK_CB(cb->skb).portid; + info->info.nlhdr = cb->nlh; + info->info.genlhdr = nlmsg_data(cb->nlh); + info->info.attrs = attrs; + genl_info_net_set(&info->info, sock_net(cb->skb->sk)); + info->info.extack = cb->extack; + memset(&info->info.user_ptr, 0, sizeof(info->info.user_ptr)); cb->data = info; if (ops->start) { @@ -865,10 +873,12 @@ static int genl_start(struct netlink_callback *cb) static int genl_dumpit(struct sk_buff *skb, struct netlink_callback *cb) { - const struct genl_dumpit_info *info = genl_dumpit_info(cb); + struct genl_dumpit_info *info = cb->data; const struct genl_split_ops *ops = &info->op; int rc; + info->info.extack = cb->extack; + genl_op_lock(info->family); rc = ops->dumpit(skb, cb); genl_op_unlock(info->family); @@ -877,10 +887,12 @@ static int genl_dumpit(struct sk_buff *skb, struct netlink_callback *cb) static int genl_done(struct netlink_callback *cb) { - const struct genl_dumpit_info *info = genl_dumpit_info(cb); + struct genl_dumpit_info *info = cb->data; const struct genl_split_ops *ops = &info->op; int rc = 0; + info->info.extack = cb->extack; + if (ops->done) { genl_op_lock(info->family); rc = ops->done(cb); |